Additional info ...
#1 usually happens when the line extends outside of the current chart window. For example, if it's a multi-year line and I'm viewing the 1-year or 6-month chart.
My normal views are 6 and 12 months, but I'll draw long-term trend lines that cover multiple years. After some time has passed from when I added the lines, I want to select each one and extend it's end to the current day. That's when this problem is noticed.
#2 is most noticable in the 6-mo and 1-yr views, which is what I normally use.
#3 (new) The chart window gets real messy if I've added multiple annotations (text boxes, triangles and lines) in a short time-span (ie. in the 3 or 6 month view), and then expand the view to 1, 2 or 5 years. The chart attempts to draw everything in the same spot on the display, thus covering the actual price line (see Example2.jpg below).
When the chart detects too many annotations to draw in one area, maybe it could replace them with a single icon of some sort, to denote an annotation exists there?
#4 (new) Having the Description text display in a pop-up box is wonderful feature, thank you! That is, when it's actually visible, and if it actually displays the correct contents. HoverOverTextAnnotation.jpg (below) shows that sometimes the pop-up is partially off-screen and unreadable.
#5 (new) The same image (HoverOverTextAnnotation.jpg) shows the mouse pointer hovering over the smaller of the two text box annotations, but the pop-up is displaying the contents of the larger text box, displayed
below the smaller one. A z-order error, since the smaller box is in fact displaying on
top of the larger box?
Anatoly, please don't get overwhelmed with these little things. These are not major problems, just minor things to check out whenever you get time to work on the chart functions, sometime in the future. Just add them to your "Chart To-Do" list and forget them for now (smile). I'm just bringing them up as I notice them, so you are aware of them.
Thank you,
-Don
EDIT: Added images.

Example2.jpg

Hover Over Text Annotation